... name: Aluminium potassium sulfate dodecahydrateOther names: Potassium alum, Potash alum, Tawas 2.PropertyAluminium Potassium Sulfate is colorless, transparent ... production. However, due to the chemical composition of alum is potassium aluminum sulfate, containing aluminum ions, ... some nutrition experts, to try to eat foods containing alum. Alum is the traditional purifying agent, has been widely used ...